FIELD: mining.
SUBSTANCE: bore bit for drilling of wells in high-gas-bearing beds contains the housing with the seat, the blind axial channel with the ring boring interconnected with external surface of the housing by the flushing channels, and the locking body installed in the cavity of the axial channel of the housing. The locking body is implemented in the form of sphere, and the axial channel - with expanded section in the top part of which the seat under locking body is located, and in the lower part - the inclined pocket for placement of sphere in starting position is located, while the pocket is interconnected by means of additional channel with ring boring of the housing.
EFFECT: increase of overall performance of drill bit.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CROWN FOR WELL DRILLING IN EMISSION HAZARDOUS BEDS | 2011 |
|
RU2481460C1 |
| BORING BIT FOR WELLS IN HIGH GAS CONTENT RESERVOIR (VERSIONS) | 2008 |
|
RU2376440C1 |
| PROJECTILE FOR WELL DRILLING IN HIGHLY GASEOUS SEAMS | 2015 |
|
RU2578216C1 |
| DRILLING BIT OF WELLS IN HIGH-GAS-BEARING FORMATIONS | 2011 |
|
RU2479709C1 |
| BIT FOR DRILLING OF WELLS IN HIGHLY GAS BEARING BEDS | 2012 |
|
RU2482256C1 |
| DRILL BIT FOR WELL DRILLING ON OUTBURST-PRONE SEAMS | 2008 |
|
RU2367763C1 |
| BORE BIT FOR DRILLING WELLS IN HIGH GAS BEARING BEDS | 2008 |
|
RU2370622C1 |
| BORE BIT FOR DRILLING WELLS IN HIGH GAS BEARING BEDS | 2008 |
|
RU2370621C1 |
| DRILLING BIT OF WELLS IN GAS-BEARING FORMATIONS | 2011 |
|
RU2479707C1 |
| DRILL COLUMN FOR DRILLING OF WELLS IN HIGHLY GAS-BEARING BEDS | 2012 |
|
RU2491408C1 |
